<template>
  <view class="cart-container" v-if="cart.length !== 0">
    <!-- 收货地址组件 -->
    <myaddress></myaddress>
    <!--商品列表的区域-->
    <view class="cart-title">
      <!--左侧图标-->
      <uni-icons type="shop" size="18"></uni-icons>
      <!--右侧文本-->
      <text class="cart-title-text">购物车</text>
    </view>
    
    <!--循环渲染购物车中的商品信息-->
    <uni-swipe-action>
      <block v-for="(goods, i) in cart" :key="i">
        <uni-swipe-action-item :right-options="options" @click="swipItemClickHandler(goods)">
          <mygoods :goods="goods" :show-radio="true" :show-num="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></mygoods>
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    
    <!--使用自定义结算组件-->
    <mysettle></mysettle>
  </view>
  
  <!-- 空白购物车的区域 -->
  <view class="empty-cart" v-else>
    <!-- <image src="/static/cart_empty@2x.png" class="empty-img"></image> -->
    <text class="tip-text">空空如也</text>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import {mapState, mapMutations} from 'vuex'
  
  export default {
    mixins: [badgeMix],
    computed: {
      ...mapState('m_cart', ['cart']),
    },
    data() {
      return {
        options: [{
          text: '删除',
          style: {
            backgroundColor: '#C00000'
          }
        }]
      };
    },
    methods: {
      ...mapMutations('m_cart', ['upDateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
      radioChangeHandler(e) {
        //console.log(e)
        this.upDateGoodsState(e)
      },
      numberChangeHandler(e) {
        //console.log(e)
        this.updateGoodsCount(e)
      },
      swipItemClickHandler(goods) {
        //console.log(e)
        this.removeGoodsById(goods.goods_id)
      }
    }
  }
</script>

<style lang="scss">
  .cart-container {
    padding-bottom: 50px;
  }
  
  .cart-title {
    height: 40px;
    display: flex;
    align-items: center;
    padding-left: 5px;
    border-bottom: 1px solid #efefef;
    
    .cart-title-text {
      font-size: 14px;
      margin-left: 10px;
    }
  }
  
  .empty-cart {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;
    
    // .empty-img {
    //   width: 90px;
    //   height: 90px;
    // }
    
    .tip-text {
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
</style>
